Table 3.

The SDM regression results for the whole country and individual Chinese regions.

Variables	Whole Country	East	Central	West	Northeast
Labor	−0.751 ***	−0.668	0.16	−1.825 ***	−3.955 *
Labor 2	1.332 ***	0.992	0.248	3.181 ***	4.530 *
Land	0.174 **	1.222 ***	0.311 *	0.260 *	−0.00639
MCI	0.236 ***	0.448 ***	0.179 ***	0.159 ***	−0.562
Ln.PINC	−0.00791	0.277 *	0.233 ***	−0.035	1.717 ***
IRR	−0.345 ***	−0.201	−0.515 ***	−0.399 **	−2.512 ***
ATP	0.00864 **	0.0219 ***	−0.00237	0.000971	0.201 **
FER	−0.293 ***	−0.862 ***	0.142	−0.361 *	7.284 ***
AGE	−0.846 **	0.441	−2.766 ***	−2.326 ***	4.198 **
W × Labor	−0.488	−0.807	−1.681	−6.591 *	−7.833 **
W × Labor2	1.089 ***	0.192	3.656 *	9.095	4.946
ρ	−0.0583	−0.0585	−1.196 ***	−0.974 ***	−0.833 ***
Sigma	0.0157 ***	0.0108 ***	0.0004 ***	0.0110 ***	0.0010 ***

Note: *, **, and *** indicate significance at the 10%, 5%, and 1% levels, respectively.